Answer to "drive won't show up and making clicking sound"I also experienced this HD symptom when my bosses computer stopped booting up. He said it happened 3 times in the history he has owned this computer. This time round it wouldn’t boot up for him. When I booted it up it made the same mechanical clicking buzzing noize. I opened up the computer tower case. then rebooted the computer tower and before the boot process started i physically tapped the HD and it seemed to have dislodged the arm or needle and the drive made a spinning noise and the computer booted up again. think its time to move to an ssd for him.